# Distance from Kelso (KLS) to Zagreb (ZAG)

> 9,040 km · estimated flight time 12h · Ultra-long-haul route.

## Summary

- **Distance**: 9,040 km / 5,617 mi / 4,881 nm
- **Estimated flight time**: 12h
- **Heading**: 28° (north northeast)
- **Return heading**: 333° (north northwest)
- **Classification**: Ultra-long-haul
- **Type**: International (United States) → Croatia
- **Intercontinental**: North America → Europe
- **Time difference**: +9h (When it's 04:59 in Kelso, it's 13:59 in Zagreb)
- **Elevation difference**: 333 ft (ZAG is higher than KLS)

## Airports

### [Southwest Washington Regional Airport (KLS)](https://www.flightduration.online/airport/kls-kelso-southwest-washington-regional-airport/1ef266df-2607-6b02-a2f2-06bb2780ed98)

- City: Kelso, United States
- ICAO: KKLS
- Timezone: America/Los_Angeles
- Coordinates: 46.120000, -122.900000
- Elevation: 20 ft

### [Zagreb Airport (ZAG)](https://www.flightduration.online/airport/zag-zagreb-zagreb-airport/1ef266df-43f4-691c-9d2a-06bb2780ed98)

- City: Zagreb, Croatia
- ICAO: LDZA
- Timezone: Europe/Zagreb
- Coordinates: 45.740000, 16.070000
- Elevation: 353 ft

## Route notes

This is an ultra-long-haul route, one of the longest in aviation. It requires wide-body aircraft with extended range capability such as the Airbus A350-900ULR or Boeing 777-200LR. Passengers should prepare for an extended flight with multiple meal services.

Time-zone information: When it's 04:59 in Kelso, it's 13:59 in Zagreb.
With a 9-hour time difference, expect significant jet lag.

## Related

- [Southwest Washington Regional Airport (KLS)](https://www.flightduration.online/airport/kls-kelso-southwest-washington-regional-airport/1ef266df-2607-6b02-a2f2-06bb2780ed98)
- [Zagreb Airport (ZAG)](https://www.flightduration.online/airport/zag-zagreb-zagreb-airport/1ef266df-43f4-691c-9d2a-06bb2780ed98)
- [Flight duration calculator](/#calculator)